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Bidentate phosphorus ligand polymer, preparation method thereof and application in olefin hydroformylation reaction

An olefin hydroformyl and polymer technology is applied in the field of bidentate phosphorus ligand polymers, which can solve the problems of low catalytic performance and achieve the effects of high selectivity, low temperature and strong substrate universality

Active Publication Date: 2019-10-18
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Although this method achieves the recycling of ligands and catalysts, its catalytic performance is much lower than that of homogeneous reactions.

Method used

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  • Bidentate phosphorus ligand polymer, preparation method thereof and application in olefin hydroformylation reaction
  • Bidentate phosphorus ligand polymer, preparation method thereof and application in olefin hydroformylation reaction
  • Bidentate phosphorus ligand polymer, preparation method thereof and application in olefin hydroformylation reaction

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preparation Embodiment 1

[0055] Preparation Example 1: Preparation of bidentate phosphorus ligand polymer represented by the following formula (I)

[0056]

[0057] In the formula (I), m:n=1:10, which means that the molar ratio of the bidentate phosphorus monomer and the styrene monomer constituting the bidentate phosphorus ligand polymer is 1:10; the structure of the formula (I) is not Indicates the linking order of each monomer, and the linking order of each monomer is not fixed, and it is a random polymer.

[0058] The bidentate phosphorus ligand polymer represented by formula (I) is prepared according to the following method:

[0059] Step 1: Add THF (100mL) and TEA (18mL, 3.5eq) to a 250ml three-neck flask under argon protection, and add PCl slowly at 0°C 3 (5g, 1eq), and stirred for 5 minutes after the addition, slowly added pyrrole (5g, 2eq, (Compound A)) dropwise at 0°C, and stirred at room temperature for 6h. After filtration, the filter cake was washed with THF, the filtrate was evapora...

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Abstract

The invention discloses a bidentate phosphorus ligand polymer represented by a formula (I) shown in the specification, wherein the bidentate phosphorus ligand polymer is formed by copolymerization ofa bidentate phosphorus monomer and styrene. The invention also discloses a preparation method of the bidentate phosphorus ligand polymer, and an application of the bidentate phosphorus ligand polymerin high-selectivity preparation of straight-chain aldehydes in an olefin hydroformylation reaction. In synthesis of the bidentate phosphorus ligand monomer, the used raw materials are cheap, the experimental process is simple, the conditions are relatively mild, reagents used in the experiment are safe and low in toxicity, large-scale production can be further realized, and meanwhile, catalytic activity of the prepared catalyst is improved.

Description

technical field [0001] The present invention belongs to the field of fine chemical industry, and specifically relates to a bidentate phosphorus ligand polymer, which is obtained by copolymerizing bidentate phosphorus ligand monomer and styrene, and the polymer can be conveniently Ground-coordinated rhodium metal catalyzes the hydroformylation reaction of various olefins, and prepares straight-chain aldehydes with one more carbon with higher aldehyde selectivity and higher l / b (molar ratio of straight-chain aldehydes to branched-chain aldehydes) values. chain aldehydes. Background technique [0002] The hydroformylation reaction is also known as the OXO reaction or the oxo synthesis reaction, which uses a transition metal catalyst to catalyze the reaction of olefins and synthesis gas to form aldehydes. This reaction was discovered in 1938 by Otto Roelen of the German Ruhr Chemical Company, who used a cobalt catalyst to react ethylene with synthesis gas to produce propionalde...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F230/02B01J31/22C07C45/50C07C47/02
CPCB01J31/1691B01J31/186B01J31/2234B01J2231/321B01J2531/822C07C45/50C08F212/08C07C47/02C08F230/02
Inventor 杨勇王召占
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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